125785135 has 16 divisors (see below), whose sum is σ = 178071552. Its totient is φ = 83469600.

The previous prime is 125785123. The next prime is 125785141. The reversal of 125785135 is 531587521.

It is a happy number.

It is not a de Polignac number, because 125785135 - 2¹¹ = 125783087 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125785094 and 125785103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56881 + ... + 59050.

It is an arithmetic number, because the mean of its divisors is an integer number (11129472).

Almost surely, 2^125785135 is an apocalyptic number.

125785135 is a deficient number, since it is larger than the sum of its proper divisors (52286417).

125785135 is a wasteful number, since it uses less digits than its factorization.

125785135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115974.

The product of its digits is 42000, while the sum is 37.

The square root of 125785135 is about 11215.3972288100. The cubic root of 125785135 is about 501.0446625071.

The spelling of 125785135 in words is "one hundred twenty-five million, seven hundred eighty-five thousand, one hundred thirty-five".